Image Tag Checker

The Image Tag Checker scans every container image in your pasted manifests and flags those that use the mutable :latest tag or no tag at all. Mutable tags make deployments non-reproducible and rollbacks unreliable.

Paste one or more manifests. The tool reports each container image, whether it is pinned, and - if not - why.

Nothing is uploaded. The analysis runs entirely in your browser.

• :latest detection - flags the mutable tag.
• No-tag detection - flags images with no version.
• Digest aware - image@sha256: digests pass.
• Multi-doc - check several manifests at once.
• Copy / Download / Print - export the report.

1. Paste your manifest(s).
2. Click Check.
3. Pin any flagged images.

Example 1 - latest. nginx:latest is flagged as mutable.

Example 2 - untagged. nginx (no tag) is flagged.

Example 3 - pinned. nginx:1.27 passes.

• Reproducibility - catch mutable images.
• Clear output - pinned or why not.
• Private - runs fully in the browser.
• Exportable - copy, download or print.